Transcript for Brutal Attack on the US Consulate in Herat, Afghanistan

the images coming in after a deadly attack on a u.S.Afghanistan. The moments playing out in the city of herat. Thankfully, no americans were lost, but this marks the first strike on a u.S. Consulate since the attack in benghazi one year ago. Abc's chief global affairs correspondent martha raddatz with the images, showing the sheer power of this truck bomb, felt far beyond the intended target. Reporter: The truck bomb was so powerful, it not only blew out windows in the consulate, but others nearly a mile from the blast. Afghan security rushed the wou wounded and dead from the scene, and then it began again. Barry reed tweeted from his nearby horooftop, "huge attack, lots of explosions, I'm safe." But then, more powerful blasts. Five suicide bombers detonating vests. Seven afghans, including guards protecting americans were killed. But an hour later, reed tweeted, "life for afghans went on normally like nothing happened. How do they do that?" What a scene this was. Martha joining us live from the washington bureau tonight. And martha, this comes as u.S. Troops come home from afghanistan. But this has been a var dangerous time. Reporter: It has been a hard year for afghan security forces. Up to 100 have been killed a week since the u.S. Troop drawdown began, david. There are still more than 55,000 u.S. Troops in afghanistan, but by this time next year, the majority of them will be gone or on their way out. 55,000 americans on their way out.

This transcript has been automatically generated and may not be 100% accurate.

{"id":20254540,"title":"Brutal Attack on the US Consulate in Herat, Afghanistan","duration":"1:42","description":"Taliban claims responsibility for the attack in Afghanistan. No Americans were killed.","url":"/WNT/video/brutal-attack-us-consulate-herat-afghanistan-20254540","section":"WNT","mediaType":"default"}